Survey Metadata

NGR stream

Northwest Territories


NGR stream sediment and water survey, NTS 106A, B, Backbone Ranges area, Northwest Territories, 2008.

Location map

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Survey Description

During July and August, 2008, a helicopter-supported regional stream sediment and water survey was carried out in the Mount Eduni map area of west-central Northwest Territories.  The survey covered approximately 16,000 km2 and 1,263 sites were sampled.  The data are published in Geological Survey of Canada Open File 6312/NWT Open Report 2009-004.

This survey was carried out using National Geochemical Reconnaissance (NGR) protocols.

Sampling Procedure

NGR stream sediment and water

At each site a pre-labelled Kraft paper bag was two-thirds filled with silt or fine sand collected from the active stream channel.  In practice, the silt sample was collected after water samples were collected but before a bulk sediment sample.  Handfuls of silt from various points in the active stream channel were collected while gradually moving upstream.  A moss mat sample was sometimes collected when a suitable sample was scarce or absent.

At every site, waters were sampled mid-channel, from flowing water where possible.  At sites where sediments were taken for heavy mineral concentration (approximately every second site) two water samples were generally collected.  Samples were collected in 125 mL Nalgene bottles.  The bottles were rinsed two or three times before collecting the sample.

Publication History

Index Publication
1 Day, S.J.A., Falck, H., Friske, P.W.B., Pronk, A.G., McCurdy, M.W., McNeil, R.J., Adcock, S.W., Grenier, A.G. (2009). Regional stream sediment and water geochemical data, Mount Eduni area, northern Mackenzie Mountains, NT (NTS 106A and part of 106B). Geological Survey of Canada, Open File 6312/Northwest Territories Geoscience Office, NWT Open Report 2009-004. (more)
2 Falck, H., Day, S.J.A., Pierce, K.L., Rentmeister, K., Ozyer, C.A., Watson, D.M. (2012). A compilation of heavy mineral concentrates: results from stream sediment samples collected 2007-2010, Mackenzie Mountains, NWT. Northwest Territories Geoscience Office, NWT Open Report 2012-001. (more)

Project History

Index Year Project
1 2007-2012 NGR/NTGO stream sediment and water surveys, Northwest Territories, 2007-2008 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
64° 65° -131.17° -128°

The geographic extent of the survey is defined by the following polygons:

  • Covers NTS 106A (Mount Eduni) and part of 106B (Bonnet Plume Lake) in the Backbone Ranges area, west-central Northwest Territories.  It is bounded to the north by latitude 65° and to the south by latitude 64°.


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